Security Advisory
ZAA-2020-19
· Please read carefully and check if the version of your Zammad system is affected by this vulnerability. Please send us information regarding vulnerabilities in Zammad!
Security Advisory Details
- ID: ZAA-2020-19
- Date: 09/22/2020
- Title: Admin Users without ticket.* Permission can access Tickets
- Severity: medium
- Product: Zammad 1.0.x up to 3.4.0
- Fixed in: Zammad 3.4.1, 3.5.0
- References:
--> CVE: 2020-26028
Vulnerability Descriptions
Admin Users without ticket.* Permission can access Tickets
An error in the authorisation logic allows Users with admin. Permissions but without ticket. Permissions to access Tickets. An attacker could gain access to information without proper authorization check.
Recommended Resolution
This vulnerability is fixed in the latest versions of Zammad and it is recommended to upgrade to one of these.
Fixed releases can be found at:
- https://zammad.org/
- https://ftp.zammad.com/
Or just update your Zammad if installed via OS package manager.
Additional information
Online version of this advisory: https://zammad.com/en/advisories/zaa-2020-19
Send all remarks to security issues to security@zammad.com.